Composition of CeraRoot implants

The increasing use of ceramics in more advanced technological applications has resulted in a heightened demand for improvements in properties and reliability. (Lange, 1989). In the last decades it has been realized that such improvements can be achieved only through careful attention not only to the chemical and mineralogical composition but also to the fabrication process. (Rahaman, 1995).

In vitro and in vivo studies have confirmed a high biocompatibility of zirconia, especially when it is completely purified of its radioactive contents. (Gahlert et al., 2007; Andreiolli et al., 2009). Generally, ceramics are inert materials, which have no adverse local or general tissue reactions. As the ceramic prostheses are made with highly polished surface, they can contact
the gum tissue and assist in the maintenance of gingival architecture. Depending on the smoothness, the ceramics prevent the buildup of plaque, creating a favorable surface for the gingival tissues. Zirconia based ceramics are chemically inert materials, allowing good cell adhesion, and while no adverse systemic reactions have been associated with it. (Ichikawa et al., 1992).

Radioactivity detected in zirconium oxide ceramics? The major radionuclides of concern are potassium, uranium and thorium and their decay products, some of which, like radium and radon are intensely radioactive but occur in low concentrations. Most of these sources have been decreasing, due to radioactive decay since the formation of the Earth, because there is no significant amount currently transported to the Earth. Thus, the present activity on earth from uranium-238 is only half as much as it originally was because of its 4.5 billion year half-life, and potassium-40 (half-life 1.25 billion years) is only at about 8% of original activity. The effects on humans of the actual diminishment (due to decay) of these isotopes is minimal however. This is because humans evolved too recently for the difference in activity over a fraction of a half-life to be significant. Put another way, human history is so short in comparison to a half-life of a billion years, that the activity of these long-lived isotopes has been effectively constant throughout our time on this planet. READ the latest radioactive isotopes analysis performed on CeraRoot implants. Click here.

9 thoughts on “Composition of CeraRoot implants”

The report shows very low levels of radioactivity from uranium and thorium, but what about naturally radioactive zirconium isotopes? Are they separated from stable Zr in your manufacturing process? It would seem that these are a much more serious problem.

Hello Jerry, the radioactive isotopes that are found in our ceramics, are the ones that are present in the crust of the earth almost since the creation of the earth, or via a meteorite. They can’t be removed. Most kitchen countertops made of granite or marble are full of these natural isotopes. Human bones also contain this isotopes due to the food we eat or the liquids we drink, or the air we breathe.